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OPERATING INSTRUCTIONS

WARNING:

 A spark near battery may cause 

battery explosion.

CHARGING A BATTERY IN THE VEHICLE

1.

Turn off all the vehicle’s accessories.

2.

Keep the hood open.

3.

Clean the battery terminals.

4.

Set the charge rate switch and the timer

to the OFF position.

5.

Lay the AC/DC cables away from any fan

blades, belts, pulleys and other moving

parts that can cause injury.

6.

For a negative-ground vehicle (as in

most vehicles), connect the charger’s

POSITIVE (RED) clamp to the POSITIVE

(POS, P, +) battery post. Next, connect

the charger’s NEGATIVE (BLACK) clamp

to the vehicle chassis or engine block,

away from the battery.

7.

For a positive-ground vehicle, connect

the charger’s NEGATIVE (BLACK)

clamp to the NEGATIVE (NEG, N, -)

battery post. Next, connect the charger’s

POSITIVE (RED) clamp to the vehicle

chassis or engine block away from the

battery. NEVER connect any clamps to

the carburetor, fuel lines or sheet-metal

body parts.

8.

Connect the charger to an electrical outlet.

9.

Select the desired automatic charge rate.

NOTE: 

The 40 Amp manual mode will

overcharge a battery if it is not monitored.

10.

For 4A, 20A and 70A rates, turn the timer

to HOLD or set the charge time, if using

the 40 Amp manual mode.

11.

When disconnecting the charger, set the

charge rate switch and the timer to the

OFF position, disconnect the charger

from the AC power, remove the clip from

the vehicle chassis, and then remove the

clip from the battery terminal.

CHARGING A BATTERY  

OUTSIDE OF THE VEHICLE

1.

First, place battery in a well-ventilated area.

2.

Set the charge rate switch and the timer

to the OFF position.

3.

Clean the battery terminals.

4.

Connect a 24-inch long, 6-gauge (AWG)

insulated battery cable to the NEGATIVE

(NEG, N, -) battery post (i.e., jumper

cable) (not provided).

5.

Connect the POSITIVE (RED) charger

clamp to the POSITIVE (POS, P, +)

battery post.

6.

Position yourself and the “negative post

extension” cable as far away from the

battery as possible, and connect the

NEGATIVE (BLACK) charger clamp to

the cable’s free end.

7.

Connect the charger to the electrical outlet.

8.

Select the desired automatic charge rate.

NOTE:

 The 40 Amp manual mode will

overcharge a battery if it is not monitored.

9.

(For 4A, 20A and 70A), turn the timer to

HOLD or set charge time if using the 40

Amp manual mode.

10.

When disconnecting the charger, set the

charge rate switch and the timer to the

OFF position, disconnect the charger from 

the AC power, disconnect the negative

clamp, and finally the positive clamp.

11.

A marine (boat) battery must be removed

and charged on shore.

NOTE:

 This charger is equipped with a safe 

start feature. In the Automatic 4, 20 and 70 

Amp charge rates, it will not supply current 

to the battery clips until a battery is properly 

connected; clips will not spark if touched 

together. In the Manual 40 Amp charge  

rate, the clips will spark if accidently 

touched together.

AUTOMATIC CHARGING MODE 

When an Automatic Charge is performed, 

the charger switches to Maintain Mode 

automatically after the battery is charged. 

The green LED will light. Put the timer on 

the HOLD position while using the 

automatic charge mode. For a battery with a 

starting voltage under 1 volt, use the 

Manual Mode first to pre-charge the battery 

for five minutes, to get additional voltage 

into the battery for the charger to analyze, 

then back to automatic mode.

MANUAL CHARGING MODE 

When manual mode is performed, the 

charger will continue to charge and will not 

shut off. THE TIMER MUST BE SET TO 

THE PROPER TIME. Monitor the charging 

process and stop when the battery is fully 

charged. Not doing so may cause damage 

to your battery or result in other property 

damage or personal injury.

ABORTED CHARGE 

If charging cannot be completed normally, 

charging will abort and the charger’s output 

will shut off. To reset after an aborted 

charge, unplug the charger from the AC 

power outlet and plug it in again.

Summary of Contents for PSW-70300A

Page 1: ...00A Automatic Battery Charger OWNERS MANUAL PLEASE SAVE THIS OWNERS MANUAL AND READ BEFORE EACH USE This manual will explain how to use the battery charger safely and effectively Please read and follow these instructions and precautions carefully ...

Page 2: ...FETY INSTRUCTIONS 3 PERSONAL SAFETY PRECAUTIONS 3 ASSEMBLY INSTRUCTIONS 4 GROUNDING AND AC POWER CORD CONNECTIONS 5 CONTROL PANEL 5 OPERATING INSTRUCTIONS 6 CALCULATING CHARGE TIME 8 MAINTENANCE AND CARE 9 TROUBLESHOOTING 9 ...

Page 3: ...of children To reduce the risk of electric shock unplug the charger from the outlet before attempting any maintenance or cleaning Do not use an extension cord Always charge the battery in a well ventilated area Do not set the charger on flammable materials such as carpeting upholstery paper cardboard etc WARNING RISK OF EXPLOSIVE GAS Operate the charger as far away from the battery as DC charger c...

Page 4: ...Item 4 at this time 4 Slide the axle Item 2 into the brackets Item 1 until centered on the charger 5 Slide one wheel Item 3 onto the axle with the recessed hub facing out as shown 6 Insert the pin Item 8 through the axle hole 7 Repeat this process for the other wheel and when both wheels have been pinned to the axle finish tightening the two axle bracket screws Item 4 8 Snap the axle caps Item 7 o...

Page 5: ... for continuous operation Use this position when you want to charge in automatic mode DO NOT use this position when using the 40A manual mode AMMETER The Ammeter indicates the amount of current measured in amperes that is being drawn by the battery As a battery takes on a charge it draws less current from the charger The Start area of the meter indicates a high rate of current being drawn from the...

Page 6: ...t 6 Position yourself and the negative post extension cable as far away from the battery as possible and connect the NEGATIVE BLACK charger clamp to the cable s free end 7 Connect the charger to the electrical outlet 8 Select the desired automatic charge rate NOTE The 40 Amp manual mode will overcharge a battery if it is not monitored 9 For 4A 20A and 70A turn the timer to HOLD or set charge time ...

Page 7: ...e HOLD position 4 With the charger plugged in and connected to the battery of the vehicle set the charge rate selector switch to the Engine Start position 5 Crank the engine until it starts or 3 seconds pass If the engine does not start wait 3 minutes before cranking again NOTE During extremely cold weather or if the battery is under 2 volts charge the battery for 5 minutes before cranking the eng...

Page 8: ... hour Ah rating of your battery you can calculate the approximate time needed to bring your battery to a full charge Example Amp hour rating Reserve capacity 16 2 NOTE The Reserve Capacity can be obtained from the battery s specification sheet or the owners manual To calculate the time needed for a charge 1 Find the percentage of charge needed 2 Multiply the Amp hour rating by the charge needed an...

Page 9: ...ot plugged in No power at the receptacle Clamps are not making a good connection to the battery Connections are reversed Battery is defective Plug the charger into an AC outlet Check for open fuse or circuit breaker supplying AC outlet Check for poor connection to battery and frame Make sure connection points are clean Unplug the charger and reverse the clamps Have battery checked Ammeter reading ...

Page 10: ... the charger off and correct the lead connections Charger makes buzz or hum Transformer laminations vibrate No problem this is a normal condition Engine start does not work Drawing more than 300 amps Failure to wait 3 minutes 180 seconds between cranks The charger may be overheated Battery may be severely discharged Crank time varies with the amount of current drawn If cranking draws more than 300...

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